I love my USP 40, and I love my Glock 27 (sub .40), and I also love my FNP9-m, so I don't know, I'd have to say all of them. I really appreciate the ability of the .40 and .357 Glock models to take conversion barrels and the vast aftermarket support they enjoy, but the USP was my first gun and it is a superb weapon in pretty much every way. Just not as good for carrying as the little 27. And my new FNP9-m is a superlative carry gun, reminds me in some important ways (like good looking machining and reliability) of my USP, has good capacity in a short grip, switchable backstraps, and it fits my USP MTAC perfectly. It has been my every day carry ever since I got it out to the range and my MTAC came in.